Yesterday at 7:30 AM Replies: 143 Add bookmark Acoustic fire suppression goes commercial. See full article... Click to expand...
Z ZenBeam Ars Praefectus 12y 3,322 Subscriptor Yesterday at 9:50 AM #33 Yesterday at 9:50 AM Add bookmark #33 [...] uses inaudible low-frequency infrasound waves [...] Click to expand... Whisper quiet. This seems to be using rapid pulses of air, rather than just the infrasonic component. ••• More options Report Add bookmark Share Upvote -6 (6 / -12)
[...] uses inaudible low-frequency infrasound waves [...] Click to expand... Whisper quiet. This seems to be using rapid pulses of air, rather than just the infrasonic component.
